XRechnung 2.1.0 · UBLStored validation assertion
UBL-CR-568
XRechnung 2.1.0 · UBL
warningschema
Original rule text
[UBL-CR-568]-A UBL invoice should not include the InvoiceLine Item Keyword
not((cac:InvoiceLine|cac:CreditNoteLine)/cac:Item/cbc:Keyword)